for all \(x,y\in B_\rho \) . Therefore, proceeding similar to the proof of [1]}, we have
\(I_1(\ell ) &\le -\frac{1}{4}\int _{B_\rho }\int _{B_\rho } \frac{|w_-(x)-w_-(y)|^l}{|x-y|^{N+s\ell }} \big (\psi (x)^p+\psi (y)^p\big ) dxdy \\&\quad +C \int _{B_\rho }\int _{B_\rho } \frac{|\psi (x)-\psi (y)|^\ell }{|x-y|^{N+s\ell }} \big (w_-(x)^p+w_-(y)^p\big )dxdy. \) 
